Results 21 to 30 of about 573,656 (262)

First Principles Simulations of Boron Diffusion in Graphite [PDF]

open access: yes, 2007
Boron strongly modifies electronic and diffusion properties of graphite. We report the first ab initio study of boron interaction with the point defects in graphite, which includes structures, thermodynamics, and diffusion. A number of possible diffusion
El-Barbary, A A   +3 more
core   +1 more source

Ultraviolet-visible spectroscopy of graphene oxides

open access: yesAIP Advances, 2012
Dispersions of few-layer (1-3 layers), multi-layer (4-10 layers) and thick-layer (>10 layers) graphene oxide (GO) were prepared by a modified Hummers method with different mass ratios of KMnO4 to graphite.
Qi Lai   +4 more
doaj   +1 more source

Tribology of Graphite-Filled Polystyrene

open access: yesLubricants, 2016
Self-lubricating polymer compounds are currently used for a wide range of applications such as bearings, gears, and water meters. Under severe conditions such as high pressure, high velocity, and/or high temperatures, the material fails (PV limit).
Raffaele Gilardi
doaj   +1 more source

Dispersion corrections in graphenic systems: a simple and effective model of binding [PDF]

open access: yes, 2013
We combine high-level theoretical and \emph{ab initio} understanding of graphite to develop a simple, parametrised force-field model of interlayer binding in graphite, including the difficult non-pairwise-additive coupled-fluctuation dispersion ...
Dobson, John F.   +2 more
core   +3 more sources

Conductivity landscape of highly oriented pyrolytic graphite surface containing ribbons and edges [PDF]

open access: yes, 2005
We present an extensive study on electrical spectroscopy of graphene ribbons and edges of highly oriented pyrolytic graphite (HOPG) using atomic force microscope (AFM).
A. K. Tyagi   +10 more
core   +2 more sources

Establishment of green graphite industry: Graphite from biomass and its various applications

open access: yesSusMat, 2023
Resource‐ and energy‐efficient biomass exploitation for green graphite production is one of the most effective strategies for satisfying graphite demand while minimizing energy consumption and carbon emissions.
Ziyi Shi   +12 more
doaj   +1 more source

USE OF WIMS/PANTHER TO ANALYSE NITROGEN WORTH MEASUREMENTS AT THE UK FLEET OF AGRS [PDF]

open access: yesEPJ Web of Conferences, 2021
The UK fleet of Advanced Gas-Cooled Reactors (AGRs) are moderated with graphite and cooled with carbon dioxide. Each reactor consists of over 300 fuel channels with a cluster of UO2 fuel pins surrounded by graphite.
Birkett Eddie, Knight Martin
doaj   +1 more source

Classic and local analysis of corrosion behaviour of graphite and stainless steels in polluted phosphoric acid [PDF]

open access: yes, 2006
In phosphoric acid solution (40% H3PO4), the corrosion behaviour of graphite and stainless steels was studied by the use of different electrochemical methods, namely polarization curve analysis, electrochemical impedance spectroscopy (EIS) and scanning ...
Basséguy, Régine   +3 more
core   +1 more source

Oxygen adsorption effect on magnetic properties of graphite [PDF]

open access: yes, 2011
Both experimental and theoretical studies of the magnetic properties of micrographite and nanographite indicate a crucial role of the partial oxidation of graphitic zigzag edges in ferromagnetism.
Boukhvalov, D. W.   +3 more
core   +2 more sources

First-principles modeling of the interactions of iron impurities with graphene and graphite

open access: yes, 2010
Results of first principles modelling of interactions graphene and graphite with iron impurities predict the colossal difference between these two carbon allotropes.
Barzola-Quiquia   +44 more
core   +1 more source

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